Oak bark

Synonym(s)

quercus cortex

Definition
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Tannin, astringents. Quercus species such as English oak, summer oak, holm oak, sessile oak or winter oak are the parent plants of the official drug (ÖAB90; DAC86) Quercus cortex (oak bark) which is extracted from dried oak bark of young branches and twigs.

Field of application/use
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Locally for inflammations in the mouth and throat area as well as genital and anal area, per os for unspecific acute diarrhoea. In the decay phase of acute or subacute eczema. Also for chronic eczema (e.g. eyelid eczema).

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Standard concentration
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5 g drug to 1 l water for full and partial baths.

For compresses, boil 10 g of drug (1 tablespoon of oak bark) on 1 l of water for 15 minutes. Cool down and use undiluted as wet pads or compresses. Can also be used as a gargle solution. Solution has to be made anew every day.

Trade names
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Traxaton®; Balcann® skin ointment;

oak bark extract from the Schupp company (20ml on 300 ml water for envelopes)

Literature
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Deryabin DG et al (2015) Antibacterial and Anti-Quorum Sensing MolecularComposition
Derived from Quercus cortex (Oak bark) Extract. Molecules 20:17093-18108.
Kraft K (2007) Skin diseases. Zschr Phytotherapy 28: 76-78